BENZ AID - COMMON QUESTIONS AND ANSWERS

1975 240D Auxillary Fuel Pump Veggie Oil

I installed the mercedessource auxillary fuel pump 3 years ago, works great. Just got car back from mechanic and now the pump is constanly clicking every half second to one second. Like it's not building up pressure.(He should not have been anywhere near the pump or wires) Before it would click fast until it built up pressure then slow down to one click every 1-2 seconds. No leaks, so fuel is not being pumped out. Car runs fine but the pump isn't performing like before. What should I to look for?

Chassis Model Number

Forums

1979 300d heater

I just bought a new heater motor because my old one would blow the fuse contuinually. Sometimes instantly, or sometimes after 20 minutes. I took it to an electric motor shop and he pointed out how it was bad- the bearing were shot, which I wasn't suprised because it had been squealing awfully since I owned the car. However, after installing the new heater motor on monday, I went out today to find that the fuse was blown. What could be causing this? It's blowing the #8 fuse (16amp) and the White AC Crossover Idle stabilization one. Is the aux pump on this?

Chassis Model Number

Forums

oil leak into air filter '79 300TD

my '79 300TD is leaking and burning oil at an alarming rate. it appears that oil is pooling in the air filter housing (the air filter itself is *drenched* in motor oil and oil is pooled in the filter housing. Also, the tablespoons of oil that pool on the pavement when the engine is hot (it doesn't leak at all overnight or when the car sits cold) are always found underneath, roughly, the air filter housing). also, the car intermittently blows a steady stream of blue smoke from the exhaust pipe that smells like burned motor oil.

Chassis Model Number

Forums

1984 300D Turbo heater blower noise

I recently replaced the line that runs from the temperature sensor on the dash to the blower motor. The foam portion of the line behind the glove compartment had disintegrated. It was probably like this for many years. The blower motor or some other part of the blower is very noisy now. Any recommendations to quiet it down would be greatly appreciated.

Chassis Model Number

Forums

84 300sd windsheild replacement

I have a crack running all the way across the glass. I was lucky enough to find and 84 300sd at a local junkyard with a perfect windshield in it. They said they would remove it and reinstall it in mine for a reasonable price. An hour later they called back to tell me that they couldn't remove it without a special tool or they would break it. I haven't been able to find any literature on the subject and much less a special tool. Any help here would be greatly appreciated. I have never replaced a windshield on any vehicle, but I am confident I can given the right information.

Chassis Model Number

Forums

1976 240D Manual Trans Stuck in Gear ??

Out of the blue, I am driving home and the gearshifter will not allow me to change gears, more like to get out of what I believe is either 2nd or 3rd gear. Anyone have an answer on what it could be? I don't want to have to get it towed and fork over $$$ to a mechanic, but if this isn't something I can fix myself, I guess that I will have to.

Chassis Model Number

Forums

Loud Knocking Noise 1981 240D

I have been driving cross country in my 1981 240D (automatic transmission) and I find that when I am going up steep hills that I hear this loud knocking noise begin when I press the gas pedal. This noise disappears when I am on flat ground or going downhill. Is this normal? Or is this a sign of a tranny thats going out? Things seem to be operating normally apart from that. Thanks

Chassis Model Number

Forums

1984 300D Turbo Interior Noise

I have a noise that sounds like an air leak in my interior/dash board. The noise is a squeeky loud air noise and happens when the car is moving more than 60 MPH, however if I let off the fuel pedal the noise will stop. It appears to be directly related to throttle position as the noise will get louder as I accelerate and will quiet down on deceleration and will dissapear altogether when just cruising below 60 MPH. Any idea what this is and how I can trouble shoot. Any help would be very much appreciated.

Chassis Model Number

Forums

Pages